Non-intrinsic ATP-binding cassette proteins ABCI19, ABCI20 and ABCI21 modulate cytokinin response at the endoplasmic reticulum in Arabidopsis thaliana

@article{Kim2020NonintrinsicAC,
  title={Non-intrinsic ATP-binding cassette proteins ABCI19, ABCI20 and ABCI21 modulate cytokinin response at the endoplasmic reticulum in Arabidopsis thaliana},
  author={Areum Kim and Jilin Chen and Deepa Khare and Jun-Young Jin and Yasuyo Yamaoka and Masayoshi Maeshima and Yunde Zhao and Enrico Martinoia and Jae-Ung Hwang and Youngsook Lee},
  journal={Plant Cell Reports},
  year={2020},
  volume={39},
  pages={473 - 487},
  url={https://api.semanticscholar.org/CorpusID:211005927}
}
Results suggest that ABCI19, ABCI20, and ABCI21 fine-tune the cytokinin response at the ER under the control of HY5 at the young seedling stage.
View on Springer
europepmc.org
11 Citations
Background Citations
3

11 Citations

Arabidopsis ABCG14 forms a homodimeric transporter for multiple cytokinins and mediates long-distance transport of isopentenyladenine-type cytokinins

Spatially distributed cytokinins: Metabolism, signaling, and transport

Structural basis of cytokinin transport by the Arabidopsis AZG2

Structural analysis reveals the structural dynamics of AZG2 during cytokinin transport, which fit into the elevator-type transport model, and provides insights into the molecular mechanism of cytokinin transport in plants.

Comprehensive Model of Cell-to-Cell Cytokinin Transport Reveals A Specific Mode of Cytokinin Riboside Influx

It is shown that CK ribosides can inhibit the uptake of CK nucleobases in tobacco Bright Yellow 2 cell suspensions but not vice versa, confirming the existence of a membrane transport system that strictly recognizes CK ribosides.

Global View on the Cytokinin Regulatory System in Potato

The main CK effects on tuber initiation are realized via activity of StLOG1/3a/3b/7c/8a genes in stolons, while CK synthesis genes StIPT3/5 and StCYP735A are expressed mainly in roots followed by tuber sprouts, but rather weakly inStolons and tubers.

Differences in the Abundance of Auxin Homeostasis Proteins Suggest Their Central Roles for In Vitro Tissue Differentiation in Coffea arabica

A more significant accumulation of proteins involved in auxin homeostasis was found in the suspension cultures vs. the plantlet, followed by callus vs. plantlet and suspension culture vs. callus, suggesting important roles of these proteins in the cell differentiation process.

Cytokinin activity - transport and homeostasis at the whole plant, cell, and subcellular levels.

The most recent advances in discovering and characterizing the membrane transporters involved in long- and short-distance translocation of CKs and their significance in CK signal activity are summarized.

The Hulks and the Deadpools of the Cytokinin Universe: A Dual Strategy for Cytokinin Production, Translocation, and Signal Transduction

A novel hypothesis is presented metaphorically comparing various cytokinin forms, enzymes of CK metabolism, and their signalling and transporter functions to the comics superheroes Hulk and Deadpool to highlight where future study can benefit the understanding of plant fitness and productivity.

The genomic basis of the plant island syndrome in Darwin’s giant daisies

Clear signatures of selection across genes associated with vascular development, growth, adaptation to salinity and flowering time are identified, thus finding compelling evidence for a genomic basis of the island syndrome in one of Darwin’s giant daisies.

Genome-wide transcript expression analysis reveals major chickpea and lentil genes associated with plant branching

Insight is gained into transcriptomic changes of two contrasting chickpea and lentil cultivars in terms of branching pattern (little versus highly branched cultivars) and candidate genes involved in the regulation of shoot branching that could be used as future targets for molecular breeding are identified.

62 References

Loss of AtPDR8, a plasma membrane ABC transporter of Arabidopsis thaliana, causes hypersensitive cell death upon pathogen infection.

The results indicate that At PDR8 is a key factor controlling the extent of cell death in the defense response and suggest that AtPDR8 transports some substance(s) which is closely related to the response of plants to pathogens.

Knockout of a Bacterial-Type ATP-Binding Cassette Transporter Gene, AtSTAR1, Results in Increased Aluminum Sensitivity in Arabidopsis1[C][OA]

AtSTAR1 is an ortholog of rice (Oryza sativa) OsSTAR1, which has been implicated in aluminum (Al) tolerance and its expression was not induced by Al or other stresses, and it is found that AtSTAR1 may interact with ALS3, a transmembrane-binding domain in Arabidopsis to form a complex.

AtPDR12 Contributes to Lead Resistance in Arabidopsis1

The mutant phenotypes and their Pb contents, as well as the localization of the GFP:AtPDR12 fusion protein at the plasma membrane, suggest that AtPDR 12 functions as a pump to exclude P b(II) and/or Pb(II)-containing toxic compounds from the cytoplasm.

Plant ABC Transporters

An insight into the functions of plant ABC transporters is given and their importance for plant development and survival is shown.

TGD1, -2, and -3 Proteins Involved in Lipid Trafficking Form ATP-binding Cassette (ABC) Transporter with Multiple Substrate-binding Proteins*

Knowing the subunit stoichiometry of the TGD complex furthers understanding of lipid transfer between chloroplast membranes, and shows one exception to be the TRIGALACTOSYLDIACYLGLYCEROL 1, 2, and 3 (TGD1, -2, and -3) putative lipid transporter located at the chloropstroke inner envelope membrane.

Molecular characterization of three Arabidopsis soluble ABC proteins which expression is induced by sugars

The Cytokinin Oxidase/Dehydrogenase CKX1 Is a Membrane-Bound Protein Requiring Homooligomerization in the Endoplasmic Reticulum for Its Cellular Activity1

This study shows that CKX1 is a type II single-pass membrane protein that localizes predominantly to the endoplasmic reticulum (ER) in Arabidopsis and indicates that this CKX isoform is a bona fide ER protein directly controlling the cytokinin, which triggers the signaling from the ER.

Ethylene Regulates the Arabidopsis Microtubule-Associated Protein WAVE-DAMPENED2-LIKE5 in Etiolated Hypocotyl Elongation1[OPEN]

A mechanism involved in the ethylene regulation of microtubules through WDL5 to inhibit etiolated hypocotyl cell elongation is revealed.

A plastidic ABC protein involved in intercompartmental communication of light signaling.

Observations suggest that functional atABC1 is required for the transport and correct distribution of protoporphyrin IX, which may act as a light-specific signaling factor involved in coordinating intercompartmental communication between plastids and the nucleus.

AtCCMA Interacts with AtCcmB to Form a Novel Mitochondrial ABC Transporter Involved in Cytochrome c Maturation in Arabidopsis*

The transporter that involves AtCCMA defines a new category of eukaryotic ABC proteins because its transmembrane and nucleotide binding domains are encoded by separate genomes.
...